STB-1

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STB-1
jp_st_b1.png
AB
RB
SB
General characteristics
Brief
Detailed
7.7/7.7/7.7BR
4 peopleCrew
Mobility
38.0 tWeight
7 forward
2 back
Gear box
Armament
105 mm L7A3 cannonWeapon 1
50 roundsAmmunition
-6° / 9°Vertical guidance
two-planeStabilizer
660 roundsAmmunition
200 roundsBelt capacity
577 shots/minFire rate
-10° / 40°Vertical guidance
4 500 roundsAmmunition
250 roundsBelt capacity
500 shots/minFire rate
Economy
210 000 Rp icon.pngResearch
550 000 Sl icon.pngPurchase
Sl icon.png5 520 / 7 689/6 100 / 8 497/2 140 / 2 981Repair
160 000 Sl icon.pngCrew training
550 000 Sl icon.pngExperts
1 400 Ge icon.pngAces
x 2.00 Rp icon.pngReward for battle

Description

GarageImage STB-1.jpg


The STB-1 is a Rank V Japanese medium tank with a battle rating of 7.7 (AB/RB/SB). It was introduced along with the entire Japanese Ground Forces tree in Update 1.65 "Way of the Samurai". The prototype of the Type 74, the STB-1 presents many features that would be in the final design.

The STB-1 is the first researchable tank in Japan's Ground Forces Rank V. Despite having considerable more armour than its comparable counterparts the Leopard 1 and Leopard A1A1, as well as comparable mobility, it is not recommended as a front-line tank like the 'Allied' counterparts. Instead, a cautious hit-and-run tactic like the Leopards should always be employed. Using the tank's hydropneumatic suspension correctly can help with the tank's depression, and in some cases, aid in survivability. Do note that the L7 on this tank reloads significantly longer than other L7-equipped tanks.

The STB-1 is unique among being one of the only Japanese tanks that can take a hit, like the Type 4 Chi-To Late and Type 5 Ho-Ri Production. It has thick frontal hull armour that can bounce shots effectively, but should not be relied on. The tank is quite fast and is further aided by the Hydropneumatic suspension, which allows this tank to manoeuvre the battlefield much like a Leopard, however the abundance of larger, more open maps at higher ranks means that getting from point A to B - and not getting shot - is not a simple as it sounds.

General info

Survivability and armour

Armour Front Sides Rear Roof
Hull 40-80 mm (64-73°) Front glacis
100 (26°), 80 mm (58-66°)Lower glacis
35-40 mm (44°) Top
40 mm (0-55°) Bottom
25 mm (1-46°) 20 mm
Turret 132 mm (12-66°) Turret front
100-200 mm (1-66°) Gun mantlet
132 mm (1-54°)
75 mm (26-61°) Rear
40 mm (1-64°)
40 mm (36-82°) Turret underside
67 mm Front
20 mm Rear
Armour Sides Roof
Cupola 30 mm 30 mm

Notes:

  • Suspension wheels and tracks are 20 mm thick.
  • Driver's vision port on the front glacis are only 50 mm thick.
  • Hull roof is rated to be 54 mm effective against HE.

Mobility

Mobility characteristic
Weight (tons) Add-on Armour
weight (tons)
Max speed (km/h)
37.8 N/A 59 (AB)
53 (RB/SB)
Engine power (horsepower)
Mode Stock Upgraded
Arcade 1,162 ____
Realistic/Simulator 663 ____
Power-to-weight ratio (hp/ton)
Mode Stock Upgraded
Arcade 30.74 __.__
Realistic/Simulator 17.54 __.__

Armaments

Main armament

Main article: L7A3 (105 mm)
105 mm L7A3
Capacity Vertical
guidance
Horizontal
guidance
Stabilizer
50 -6°/+9° ±180° Two-plane
Turret rotation speed (°/s)
Mode Stock Upgraded Prior + Full crew Prior + Expert qualif. Prior + Ace qualif.
Arcade 22.85 __.__ __.__ __.__ __.__
Realistic 14.28 16.8 20.4 __.__ __.__
Reloading rate (seconds)
Stock Prior + Full crew Prior + Expert qualif. Prior + Ace qualif.
10.8 9.6 __.__ __.__
Ammunition
Penetration statistics
Ammunition Type of
warhead
Penetration in mm @ 90°
10m 100m 500m 1000m 1500m 2000m
M392A2 APDS 303 302 296 277 257 252
M393 HESH 127 127 127 127 127 127
M456 HEATFS 400 400 400 400 400 400
Shell details
Ammunition Type of
warhead
Velocity
in m/s
Projectile
Mass in kg
Fuse delay

in m:

Fuse sensitivity

in mm:

Explosive Mass in g
(TNT equivalent):
Normalization At 30°
from horizontal:
Ricochet:
0% 50% 100%
M392A2 APDS 1,478 5.8 N/A N/A N/A +1.5° 75° 78° 80°
M393 HESH 730 15 0.4 0.1 4,310 +0° 73° 77° 80°
M456 HEATFS 1,173 11 0.0 0.1 1,270 +0° 65° 72° 75°
Ammo racks
Full
ammo
1st
rack empty
2nd
rack empty
3rd
rack empty
4th
rack empty
Visual
discrepancy
50 44 (+6) 16 (+34) 10 (+40) (+49) No

Hull floor empty: 44 (+6)

Machine guns

12.7 mm M2HB
Pintle mount
Capacity (Belt capacity) Fire rate
(shots/minute)
Vertical
guidance
Horizontal
guidance
660 (200) 577 -10°/+40° ±180°
7.62 mm M1919A4
Coaxial mount
Capacity (Belt capacity) Fire rate
(shots/minute)
Vertical
guidance
Horizontal
guidance
4,500 (250) 500 N/A N/A

Usage in the battles

Describe the tactics of playing in the vehicle, the features of using vehicles in the team and advice on tactics. Refrain from creating a "guide" - do not impose a single point of view but give the reader food for thought. Describe the most dangerous enemies and give recommendations on fighting them. If necessary, note the specifics of the game in different modes (AB, RB, SB).

Pros and cons

Pros:

  • Highly mobile, comparable to the German Leopard I.
  • More armour than the German Leopard (around 100m hull and turret).
  • 105 mm L7 cannon found on other NATO tanks.
  • May bounce APHE shells.
  • Low profile.
  • Utilization of hydropneumatic suspension allows for various offensive and defensive options.
  • 12.7 mm Browning Machine Gun.

Cons:

  • Other areas are lightly armoured, vulnerable to high penetrating SPAA.
  • Reload and top speed slower than Leopard.
  • Small gun elevation angle.

History

The prototype for the Type 74. Known in Japanese as 74式戦車の試作車STB-1 (ななよんしきせんしゃのしさくしゃSTB-1). Created in September 1969 along with STB-2 in the STT program. Due to issues with cost effectiveness these two prototypes were not considered for the replacement of the Type 61. In a bid to reduce costs STB-3, STB-4, STB-5 and STB-6 were produced between April 1970 to December 1971. The final judgement for the STT program was held in November 1973 which lead the line to be completed in 1974. And, production started the following year in 1975 for the Type 74.

Media

An excellent addition to the article will be video guides, as well as screenshots from the game and photos.

Read also

Sources

Paste links to sources and external resources, such as:

  • topic on the official game forum;
  • other literature.


Japan medium tanks
Chassis Chi-Ha  Type 97 Chi-Ha · Type 97 Chi-Ha Kai · Type 97 Chi-Ha Short Gun
Chassis Chi-He  Type 1 Chi-He · Type 2 Ho-I · Type 3 Chi-Nu · Chi-Nu II
End war  Type 4 Chi-To · Type 4 Chi-To Late · Type 5 Chi-Ri II
Post-war  ST-A1 · ST-A2 · Type 61 · STB-1 · Type 74 · Type 90
USA  Medium Tank M4A3 (76) W HVSS Sherman